91751960 has 16 divisors (see below), whose sum is σ = 206442000. Its totient is φ = 36700768.

The previous prime is 91751929. The next prime is 91751963. The reversal of 91751960 is 6915719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91751963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1146860 + ... + 1146939.

It is an arithmetic number, because the mean of its divisors is an integer number (12902625).

Almost surely, 2^91751960 is an apocalyptic number.

It is an amenable number.

91751960 is an abundant number, since it is smaller than the sum of its proper divisors (114690040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91751960 is a wasteful number, since it uses less digits than its factorization.

91751960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293810 (or 2293806 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 38.

The square root of 91751960 is about 9578.7243409548. The cubic root of 91751960 is about 451.0296750565.

The spelling of 91751960 in words is "ninety-one million, seven hundred fifty-one thousand, nine hundred sixty".